It's a Dirty Business

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Leeds North West - 2025 Sewage

Polluted by sewage 4,253 hours in 2025 , monitoring offline 20,570 hours , potential overflows 687 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Leeds North West for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Daily Data

Jan - 865 hours , 187 potential
Feb - 1 hours , 2,071 offline
Mar - 0 hours , 2,764 offline
Apr - 0 hours , 2,160 offline
May - 23 hours , 2,232 offline
Jun - 158 hours , 33 potential
Jul - 225 hours , 55 potential
Aug - 1 hours , 1,488 offline
Sept - 369 hours , 26 potential
Oct - 335 hours , 1,488 offline
Nov - 828 hours , 279 potential
Dec - 1,444 hours , 104 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Yorkshire Water POOL/STW/3XDWF OVERFLOW River Wharfe 73 927 h 27m -
Yorkshire Water WOODLANDS CLOSE/CSO River Aire 54 742 h 21m 643 h
Yorkshire Water RAWDON/CSO River Aire 54 653 h 14m -
Yorkshire Water BURLEY IN WHARFEDALE/STW River Wharfe 54 649 h 23m -
Yorkshire Water OTLEY/STW River Wharfe 40 283 h 19m -
Yorkshire Water CROOK FARM/CSO Culverted River Wharfe 37 119 h 41m -
Yorkshire Water ADEL CHURCH LANE/CSO Adel Beck 28 115 h 55m -
Yorkshire Water BILLAMS HILL/CSO River Wharfe 42 102 h 49m -
Yorkshire Water CLAREMONT 271/CSO River Aire 13 100 h 38m 244 h
Yorkshire Water RAWDON/CSO River Aire 23 97 h 17m -
Yorkshire Water WOODLANDS DRIVE/CSO River Aire 25 72 h 50m -
Yorkshire Water POOL/STW/6XDWF OVERFLOW River Wharfe 9 72 h 17m -
Yorkshire Water BYWATER FARM/CSO Adel Beck 5 51 h 33m 7,312 h
Yorkshire Water LOW LANE/CSO Oil Mill Beck 31 45 h 28m -
Yorkshire Water ARTHINGTON LANE/CSO River Wharfe 19 35 h 29m -
Yorkshire Water ILKLEY ROAD/CSO River Wharfe 23 33 h -
Yorkshire Water WARREN LANE OTLEY/CSO Wharfe 12 28 h 15m 2 h
Yorkshire Water GHYLL ROYD/CSO Nunroyd Beck 17 25 h 43m -
Yorkshire Water OTLEY BRIDGE STREET/CSO River Wharfe 13 23 h 7m -
Yorkshire Water KIRK LANE/NO 1 CSO Nun Royd Beck 23 21 h 43m -
Yorkshire Water BLACKMOOR ROAD/NO 2 CSO Adel Beck 17 15 h 47m -
Yorkshire Water WEST BUSK LANE/NO 2 CSO River Wharfe Via Public Sewer 12 15 h 42m -
Yorkshire Water NETHERFIELD ROAD/CSO Mire Beck Via Sws 7 13 h 56m -
Yorkshire Water OTLEY ROAD ADEL/CSO Culverted Adel Beck 4 2 h 11m -
Yorkshire Water FRASER AVENUE/NO 2 CSO River Aire 3 1 h 23m -
Yorkshire Water NEWLAY LANE 266/CSO River Aire 5 1 h 10m -
Yorkshire Water NEWLAITHES ROAD/NO 1 CSO Unknown 4 0 h 53m -
Yorkshire Water STAIRFOOT LANE/CSO Adel Beck 1 0 h 36m 4,454 h
Yorkshire Water VICTORIA GARDENS/CSO River Aire 2 0 h 24m -
Yorkshire Water UNDERWOOD DRIVE/CSO River Aire 0 0 h 16 h
Yorkshire Water NEWLAY WOOD CRESCENT/CSO Kirkstall Forge Goit Via Sws 0 0 h -
Yorkshire Water KIRK LANE/NO 2 CSO Nun Royd Beck 0 0 h 8,584 h
Yorkshire Water NEWLAY LANE/CSO River Aire 0 0 h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.